PT-2021-15500 · Npm · Msgpack

Published 2021-07-21 · Updated 2021-08-19 · CVE-2021-23410

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions msgpack versions all

Description The issue concerns Deserialization of Untrusted Data via the unpack function. This affects the NPM package msgpack only, and not the similarly named package @msgpack/msgpack.

Recommendations For msgpack versions all, consider disabling the unpack function as a temporary workaround until a patch is available. Restrict the use of the unpack function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-23410

GHSA-MX67-WV8X-HVV9

Affected Products

Msgpack

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-23410 · Security Note
• https://osv.dev/vulnerability/GHSA-mx67-wv8x-hvv9 · Vendor Advisory
• https://github.com/msgpack/msgpack-node · Note
• https://github.com/msgpack/msgpack-node/blob/master/src/msgpack.cc%23L302-L335 · Note
• https://t.me/cvenotify/17962 · Telegram Post
• https://t.me/cvenotify/18325 · Telegram Post
• https://snyk.io/vuln/SNYK-JS-MSGPACK-1296122 · Note